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Is soil loss due to crop harvesting the most disregarded soil erosion process? A review of harvest erosion
Soil and Tillage Research ( IF 6.5 ) Pub Date : 2021-10-04 , DOI: 10.1016/j.still.2021.105213
Michael Kuhwald 1 , Fritjof Busche 1 , Philipp Saggau 1 , Rainer Duttmann 1
Affiliation  

While water and wind erosion are part of intensive research activities all over the world, soil loss due to crop harvesting (SLCH) is rarely acknowledged. SLCH occurs in tuber and root crops, which were cultivated on at least 1.1 million km2 worldwide in 2019. Thus, 8.4% of arable soils were affected by this kind of soil loss which can reach erosion rates of 22 Mg ha−1 harvest−1. Although these erosion rates are as high as for water and wind erosion, there are only 27 scientific references available that focus on SLCH. Hence, the relationship between possible environmental degradation and perception in science appears to be ambivalent. The aim of this review is to raise awareness of SLCH and harvest erosion. To achieve this aim, firstly the current state of knowledge on SLCH is summarized based on peer reviewed and international references. A special focus is on the rates of SLCH, on available regression equations to calculate the soil losses by harvest and on the environmental effects. Secondly, important research gaps and necessary research activities are identified. It becomes apparent that (i) new data is required which considers developments in harvest techniques and soil management, (ii) data from North America, South America and Oceania is urgently needed as no references for these regions are available yet, (iii) models to predict SLCH are necessary and (iv) research is required on the fate of the adhering soil within the landscape and on its environmental effects.



中文翻译:

作物收获造成的土壤流失是最容易被忽视的土壤侵蚀过程吗?收获侵蚀的回顾

虽然水蚀和风蚀是世界各地密集研究活动的一部分,但由于作物收获 (SLCH) 造成的土壤流失很少被承认。SLCH 发生在块茎和块根作物中,2019 年全球至少种植了 110 万平方公里2。因此,8.4% 的耕地受到这种土壤流失的影响,侵蚀率可达 22 Mg ha -1收获- 1. 尽管这些侵蚀率与水蚀和风蚀一样高,但只有 27 篇科学参考文献关注 SLCH。因此,可能的环境退化与科学感知之间的关系似乎是矛盾的。本次审查的目的是提高对 SLCH 和收获侵蚀的认识。为了实现这一目标,首先根据同行评审和国际参考资料总结了 SLCH 的当前知识状态。特别关注 SLCH 的比率、可用的回归方程来计算收获时的土壤流失以及环境影响。其次,确定了重要的研究空白和必要的研究活动。很明显,(i) 需要考虑收获技术和土壤管理发展的新数据,(ii) 来自北美的数据,

更新日期:2021-10-04
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